The carbon kinetic isotope effects of ozone‐alkene reactions in the gas‐phase and the impact of ozone reactions on the stable carbon isotope ratios of alkenes in the atmosphere

Iannone, R.; Anderson, R. S.; Rudolph, J.; Huang, Lin; Ernst, D.

doi:10.1029/2003gl017221

Cited by 34 publications

(48 citation statements)

References 12 publications

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“…There is also a more theoretical implication. While the previously reported value suggested that the KIE for the reaction of isoprene fits well into the semi-empirical relationship between KIE and number of carbon atoms derived by Iannone et al (2003) for reactions of alkenes with ozone, the new KIE is (1.4±0.3) ‰ higher than the prediction.…”

Section: Comparison With Previously Published Datamentioning

confidence: 41%

“…The new KIE for isoprene is with (8.40 ± 0.11) ‰ somewhat higher than the previously reported value of (6.1 ± 1.0) ‰ (Iannone et al, 2003). This value is an average of four measurements ranging from 4.0-7.8‰, resulting in a 95% confidence interval of 2.84-7.79‰.…”

Section: Comparison With Previously Published Datamentioning

confidence: 50%

“…The experimental techniques used in this study are similar to the methods to measure stable carbon isotope KIEs described previously in the literature (Anderson et al, , 2004Iannone et al, 2003). KIE experiments are similar in concept to relative rate (RR) experiments.…”

Section: Methodsmentioning

confidence: 89%

“…However, quantitative applications of stable isotope ratio measurements require knowledge of the isotope fractionation effects associated with the key reactions. To our knowledge, there are no published measurements of the KIEs for reaction of MVK and MACR with ozone and only one publication which presents KIE measurements for the reaction of isoprene with ozone (Iannone et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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The stable-carbon kinetic isotope effects of the reactions of isoprene, methacrolein, and methyl vinyl ketone with ozone in the gas phase

Iannone¹,

Koppmann²,

Rudolph³

2008

Atmospheric Environment

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The stable-carbon kinetic isotope effects (KIEs) for the gas-phase reactions of isoprene, methacrolein (MACR), and methyl vinyl ketone (MVK) with ozone were studied in a 25 L reaction chamber at (298 ± 2) K and ambient pressure. The time dependence of both the stable-carbon isotope ratios and the concentrations was determined using a gas chromatography combustion isotope ratio mass spectrometry (GCC-IRMS) system. The volatile organic compounds (VOCs) used in the KIE experiments had natural-abundance isotopic composition thus KIE data obtained from these experiments can be directly applied to atmospheric studies of isoprene chemistry.

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Section: Comparison With Previously Published Datamentioning

confidence: 41%

Section: Comparison With Previously Published Datamentioning

confidence: 50%

Section: Methodsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The stable-carbon kinetic isotope effects of the reactions of isoprene, methacrolein, and methyl vinyl ketone with ozone in the gas phase

Iannone¹,

Koppmann²,

Rudolph³

2008

Atmospheric Environment

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“…3,4 Rudolph et al 5 also described a kinetic fractionation effect on the stable carbon isotopes of organic compounds during the oxidation by OH radicals in the atmosphere, similar to the study by Iannone et al for ozone. 6 This isotope effect can be used to study the different processes that contribute to the atmospheric concentration of carbonaceous aerosols. However, only little information is available on the stable carbon isotopic composition of carbonaceous aerosols and their gas-phase counterparts in the atmosphere.…”

mentioning

confidence: 99%

Determination of stable carbon isotopes of organic acids and carbonaceous aerosols in the atmosphere

Fisseha

Saurer

Jäggi

et al. 2006

Rapid Comm Mass Spectrometry

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A wet oxidation method for the compound-specific determination of stable carbon isotopes (d 13 C) of organic acids in the gas and aerosol phase, as well as of water-soluble organic carbon (WSOC), is presented. Sampling of the organic acids was done using a wet effluent diffusion denuder/aerosol collector (WEDD/AC) coupled to an ion chromatography (IC) system. The method allows for compound-specific stable carbon isotope analysis by collecting different fractions of organic acids at the end of the IC system using a fraction collector. d 13 C analyses of organic acids were conducted by oxidizing the organic acids with sodium persulfate at a temperature of 1008C and determining the d 13 C value of the resulting carbon dioxide (CO 2 ) with an isotope ratio mass spectrometer. In addition, analysis of d 13 C of the WSOC was performed for particulate carbon collected on aerosol filters. The WSOC was extracted from the filters using ultrapure water (MQ water), and the dissolved organic carbon was oxidized to CO 2 using the oxidation method. The wet oxidation method has an accuracy of 0.5% with a precision of W0.4% and provides a quantitative result for organic carbon with a detection limit of 150 ng of carbon.

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Carbon isotope‐constrained seasonality of carbonaceous aerosol sources from an urban location (Kanpur) in the Indo‐Gangetic Plain

et al. 2017

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The Indo‐Gangetic Plain (IGP) in northern India, Pakistan, and Bangladesh is a major source of carbonaceous aerosols in South Asia. However, poorly constrained seasonality of their sources over the IGP leads to large uncertainty in climate and health effects. Here we present a first data set for year‐round radiocarbon (Δ14C) and stable carbon (δ13C)‐based source apportionment of total carbon (TC) in ambient PM10 (n = 17) collected from an urban site (Kanpur: 26.5°N, 80.3°E) in the IGP during January 2007 to January 2008. The year‐round 14C‐based fraction biomass (fbio‐TC) estimate at Kanpur averages ~77 ± 7% and emphasizes an impact of biomass burning emissions (BBEs). The highest fbio‐TC (%) is observed in fall season (October–November, 85 ± 6%) followed by winter (December–February, 80 ± 4%) and spring (March–May, 75 ± 8%), while lowest values are found in summer (June–September, 69 ± 2%). Since biomass/coal combustion and vehicular emissions mostly contribute to carbonaceous aerosols over the IGP, we predict δ13CTC (δ13Cpred) over Kanpur using known δ13C source signatures and the measured Δ14C value of each sample. The seasonal variability of δ13Cobs − δ13Cpred versus Δ14CTC together with air mass back trajectories and Moderate Resolution Imaging Spectroradiometer fire count data reveal that carbonaceous aerosols in winter/fall are significantly influenced by atmospheric aging (downwind transport of crop residue burning/wood combustion emissions in the northern IGP), while local sources (wheat residue combustion/vehicular emissions) dominate in spring/summer. Given the large temporal and seasonal variability in sources and emission strength of TC over the IGP, 14C‐based constraints are, thus, crucial for reducing their uncertainties in carbonaceous aerosol budgets in climate models.

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The carbon kinetic isotope effects of ozone‐alkene reactions in the gas‐phase and the impact of ozone reactions on the stable carbon isotope ratios of alkenes in the atmosphere

Cited by 34 publications

References 12 publications

The stable-carbon kinetic isotope effects of the reactions of isoprene, methacrolein, and methyl vinyl ketone with ozone in the gas phase

The stable-carbon kinetic isotope effects of the reactions of isoprene, methacrolein, and methyl vinyl ketone with ozone in the gas phase

Determination of stable carbon isotopes of organic acids and carbonaceous aerosols in the atmosphere

Carbon isotope‐constrained seasonality of carbonaceous aerosol sources from an urban location (Kanpur) in the Indo‐Gangetic Plain

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